As for me, contact often begins before the first 'formal' and 'direct' engagement. I sense when a presence is around, when a demon, deity, angel or other being approaches me, and I always watch out for the signs and what my intuition say. To me, communication is already in progress this way. Thinking of them, visualising, thoughts and form of acts I direct to them all during my day and night. This is a more tender and passive way of communicating and bonding, but I usually start everything with this. Sometimes, I end my day with focusing on the being right before falling asleep, even. I know they sense these already, so I use this time wisely, respectfully, focused.
Then comes a more direct communication, usually through a small ritual, meditation (sigils can be used, incenses, oils, objects, not necessary, but can be), where I establish the invitation and charge the fine thread between my soul and the entity's, which provides an always direct and clear communication in a more straightup way. They can form words, they can actively speak to me outside of any ritual, and if I maintain these threads well, and my mind is not clouded, the messages are clear and constant, all depends on how often and how much they prefer to talk and why.
If a matter is more serious, and I want a far more calm and undisturbed communication, then I just repeat the meditation with them participating, and not doing it in the 'casual' way. I can quickly tell who's talking to me once I sense their energy and memorise it well.
That's my way of doing this. I'm not sure what is called, never truly bothered about 'naming it'.
I just do this, because this is how I felt it right, and this is what worked me so well.